Automatic Dependent Surveillance - Broadcast (ADS-B) is a completely new technology. It has changed technology of communication- navigation- surveillance (CNS) in the current air traffic management services of the world. In addition to the proven and certified consideration of ADS-B as a low-cost solution and replacement of traditional surveillance radar, ADS-B allows pilots and air traffic controllers to "see" and "control "flight operations with high accuracy.ADS-B also enhances the ability of monitoring flight operations more safely and exploiting air routes more efficiently.

Because of the outstanding features of the ADS-B, Asia - Pacific Air Navigation Planning and Implementation Regional Group (APANPIRG) has established a sub-group which studies ADS-B under the auspices of International Civil Aviation Organization (ICAO) to implement ADS-B in the Asia-Pacific region.

It is also a desire of airlines through the International Air Transport Association (IATA) to get benefit from the services using ADS-B surveillance to separate aircraft. The Civil Air Navigation Services Organization (CANSO) has also voiced to support the cooperation between the Air navigation providers ADS-B data sharing and Very High Frequency (VHF) communication services, in order to exploit the technological features most effectively.

In Vietnam, in order to keep up with technology trends of civil aviation flight operations in the world and the ICAO policy on installing ADS-B surveillance network in the airline industry, on January 8, 2008 the Civil Aviation Administration of Vietnam (the Civil Aviation Authority of Vietnam – CAAV currently) requested approval from  Ministry of Transportation to install ADS-B surveillance network. Accordingly, 23ADS-B stations will be installed nationwide. This policy has been approved by the Ministry of Transportation.

At the same time, the Ministry of Transport  allowed  CAAV and Vietnam Air Traffic Management Corporation (VATM) to share data from ADS-B stations with countries whose flight information regions (FIRs) are  adjacent and to install air -  ground  VHF at these ADS-B stations for those sharing ADS- B data to control traffic in their FIRs  upon request.

Implementing the guidelines of ICAO and Ministry of Transport, VATM and Civil Aviation Administration of Singapore (CAAS) have agreed sharing ADS-B data and VHF information, in order to exploit the features of advanced technology most effectively. It makes favorable conditions for direct communication between air traffic controllers and pilots. It is expected that by the second quarter of 2013, ADS-B stations in the East Sea (including 3 stations) will be officially put into operation by VATM.

The signing ceremony of collaboration agreement on ADS-B between VATM and  CAAS

This collaboration marks the close cooperation between Viet Nam civil aviation and other countries in the region. And this is also a prerequisite for safe and efficient flight operations in the region and worldwide.

Resource: ATTECH